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60 Matching Results
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A MACRO GRAIN SIZE TECHNIQUE FOR URANIUM
None
Date:
February 1, 1956
Creator:
Gardner, H.R.
System:
The UNT Digital Library
The Determination of Thorium in the Presence of Uranium, Titanium and Tungsten
Abstract: "Thorium is separated from uranium, titanium and tungsten by precipitation as fluoride. The precipitate is ignited to oxide, dissolved in nitric acid, evaporated with perchloric acid, neutralized to a pH between 2.0 and 2.5 and titrated with the disodium salt of ethylene-ddiamine tetrascetic acid, using Eriochrome Cyanide as indicator. If less than 30 milligrams of thorium is present, lanthanum is added as a carrier."
Date:
1956
Creator:
Willard, Hobart H.; Mosen, Arthur. W. & Gardner, Ross D.
System:
The UNT Digital Library
Geology of the Stanford-Hobson Area, Central Montana
From introduction: The Stanford-Hobson area project was undertaken by the United States Geological Survey, in cooperation with the United States Bureau of Reclamation, as part of a program for the geologic mapping and investigation of mineral resources in the Missouri River basin. The field work that is the basis of the ensuing report consisted of mapping the geology and determining stratigraphic relationships in sufficient detail to evaluate the mineral resources, especially the oil and gas possibilities in the area.
Date:
1956
Creator:
Vine, James David
System:
The UNT Digital Library
Plasma Heating by Transit-Time Magnetic Pumping in Single-Transit Systems
Report discussing the heating of a plasma which passes through a series of magnetic pumping cells by applying the second-order theory of transit-time heating developed by Berger and Newcomb. From abstract: "Transit-time magnetic pumping in single-transit systems seems to be a feasible method of increasing plasma energy by amounts of the order of a factor of 10."
Date:
September 1956
Creator:
Hall, Laurence S.; Gardner, Andrew L. & Edwards, Donald A.
System:
The UNT Digital Library
Theoretical study of the lateral frequency response to gusts of a fighter airplane, both with controls fixed and with several types of autopilots
Report presenting a theoretical approach to determine the lateral frequency response of a fighter airplane to side gusts and rolling gusts at a Mach number of 0.7 and an altitude of 30,000 feet. Frequency response and power spectral density were determined with the controls fixed and in combination with three different basic types of attitude autopilots.
Date:
March 1956
Creator:
Adams, James J. & Mathews, Charles W.
System:
The UNT Digital Library
The Kinetic Behavior of Water Boiler Type Reactors
None
Date:
April 1, 1956
Creator:
Remley, M. E.; Flora, J. W.; Hetrick, D. L. & Inglis, L. P.
System:
The UNT Digital Library
INHALATION TOXICITY OF ZIRCONIUM COMPOUNDS. I. SHORT-TERM STUDIES
A total of 270 animals of 5 species was exposed by inhalation to compounds of zirconium for 6 hours per day, 5 days per week. One group of animals was exposed to ZrO{sub 2} at an atmospheric concentration of 75 mg. Zr/m{sup 3} for 30 days; another, to 11 mg. Zr/m{sup 3} for 60 days. A third group was exposed to a mist of ZrCl{sub 4} at a level of 6 mg. Zr/m{sup 3} for 60 days. Zirconium oxide produced no significant changes in mortality, growth rate, blood nonprotein nitrogen or fibrinogen, urinary protein, hematological values or histological structure. Zirconium tetrachloride at 6 mg. Zr/m{sup 3} gave questionable changes in blood hemoglobin concentration and red cell counts of dogs and a slight increase in mortality of rats and guinea pigs. Inhaled zirconium compounds deposited primarily in the lung and pulmonary lymph node, with a fraction of a per cent in the bone and considerably less in the soft tissues. (auth)
Date:
July 31, 1956
Creator:
Spiegl, C. J.; Calkins, M. C.; DeVoldre, J. J.; Scott, J. K.; Steadman, L. T. & Stokinger, H. E.
System:
The UNT Digital Library
ACTIVITIES IN LIQUID AND SOLID BINARY METAL SYSTEMS. Progress Report on Research Program for February 1, 1956 to January 31, 1957
None
Date:
November 13, 1956
Creator:
Elliott, J.F.
System:
The UNT Digital Library
Analysis of a Form of Peak Holding Control
From Introduction: "The general objective of this report is a study of the characteristics of the described form of peak holding control. The control has not yet been used in experimental turbojet-engine study.This study is concerned with only one method of extracting the maximum amount of information from a peak output for the purpose of maintaining that peak. The criteria sought in this control process are: maintenance of peak average output, minimum duration of time in undesirable operation, quickness in response to command to reach peak condition, least amount of excursion in the undesirable region, and type of stability."
Date:
March 30, 1956
Creator:
Delio, G. J.
System:
The UNT Digital Library
Joint Design for Making Root Pass Welds without Filler Material
Investigation to evaluate some of the designs, techniques, and methods for fabrication of a root pass.
Date:
July 9, 1956
Creator:
Lemon, L. C. & Smith, W. R.
System:
The UNT Digital Library
Improved High Voltage Supply and Control Panel for the Nier Mass Spectrometer
Abstract: "The recurrent difficulties experienced in routine operation of the high voltage supplies and main control panels of the standard assay instruments are indicated. New supply and distribution units, which were designed to avoid these difficulties, have been constructed and tested. This report briefly describes these units and presents a more detailed description of a high current power supply and main control panel."
Date:
1956
Creator:
White, J. R. & Cameron, A. E.
System:
The UNT Digital Library
Stratigraphy of Middle Tertiary Rocks in Part of West-Central Florida
The following report presents the results of part of a geologic study of the phosphate deposits in central Florida. The purpose of the investigative research done in Florida is to determine the geologic history of the phosphate deposits and associated sediments, in order that the distribution of phosphate and uranium will be more clearly understood.
Date:
August 1956
Creator:
Carr, Wilfred J. & Alverson, Douglas C.
System:
The UNT Digital Library
Bibliography of Bureau of Mines Health and Safety Publications: January 1947-June 1955
From Introduction: "While the basic purpose of this bulletin is to describe health and safety reports for the period January 1947 through 1955, a selected number of earlier publications that are believed pertinent for reference purposes are included."
Date:
1956
Creator:
Humphrey, H. B. & Stratton, Hazel J.
System:
The UNT Digital Library
Compressibility Factor, Density, Specific Heat, Enthalpy, Entropy, Free-Energy Function, Viscosity, and Thermal Conductivity of Steam
Note presenting tables of thermal properties of stream that have been prepared in an NBS-NACA series. They include, for real gas, the compressibility factor, the density, the specific heat at constant pressure, the enthalpy, the entropy, the free-energy function, the viscosity, and the thermal conductivity.
Date:
August 1956
Creator:
Fano, Lilla; Hubbell, John H. & Beckett, Charles W.
System:
The UNT Digital Library
PHYSICS DIVISION SUMMARY REPORT FOR NOVEMBER 1955 THROUGH MARCH 1956
None
Date:
August 1, 1956
Creator:
unknown
System:
The UNT Digital Library
Nuclear Chemical Research Radiochemical Separations and Activation Analysis. Progress Report No. 5 for November 1955-October 1956. Dept. Of Chemistry
None
Date:
November 1, 1956
Creator:
unknown
System:
The UNT Digital Library
Stratigraphy of middle Tertiary rocks in part of west-central Florida
Discussing the stratigraphy of middle tertiary rocks in parts of West-Central Florida
Date:
August 1956
Creator:
Carr, Wilfred James & Alverson, Douglas C.
System:
The UNT Digital Library
Stress Analysis of Perforated Plates
Formulas and curves are presented for design and strength evaluation of perforated plates. (auth)
Date:
September 1, 1956
Creator:
Horvay, G.
System:
The UNT Digital Library
Arc Research Progress Report
None
Date:
October 15, 1956
Creator:
Post, R. F.
System:
The UNT Digital Library
Controlled Atmospheres for Spectrochemical Analysis
The following report describes preliminary investigations on the use of controlled atmospheres, discussing the method of semiquantitative spectrographic analysis used in conjunction with the final gas jet design.
Date:
June 1956
Creator:
Annell, C. S.
System:
The UNT Digital Library
Continuous Velocity Logging as Applied to Uranium Exploration
Discussing velocity logging carried out during six weeks of fieldwork in 1955 through contracts with the Texas Company.
Date:
September 26, 1956
Creator:
Scott, James H.
System:
The UNT Digital Library
Mirror Machine Program : ARC Research Progress Report
This report follows experiments concerned with a particular proposal or set of related proposals of means for the production of plasma with density above 10-11 particles per cm-3 with a temperature of the order of a few electron volts.
Date:
October 15, 1956
Creator:
Post, Richard F.
System:
The UNT Digital Library
Geologic Features of Areas of Abnormal Radioactivity South of Ocala, Marion County, Florida
From abstract: Areas of abnormal radioactivity south of Ocala, Marion County, Fla., discovered in 1953 by aerial survey, were investigated by surface examination and by 10 power auger drill holes. Interbedded clay, clayey sand, and uraniferous phosphorite occur in the areas of anomalous radioactivity. Miocene fossils occur at three localities in these beds which are evidently outliers of Miocene sediments on the Ocala limestone of Eocene age. The preserved outliers are southwest of the main belt of Miocene sediments. The principal uraniferous rocks are clayey, sandy, pellet phosphorite that occurs in beds a few feet thick, and very porous, phosphatic sand rock which makes abundant float at many places. Apatite forms the phosphate pellets in the unweathered phosphorite. The very porous, phosphatic sand rock is the highly leached residuum of the pellet phosphorite and is composed mainly of quartz, kaolinite, wavellite, and crandallite ( pseudowavellite2). It closely resembles the aluminum phosphate rock of the "leached zone" of the Bone Valley formation in the land-pebble phosphate district.
Date:
March 1956
Creator:
Espenshade, Gilbert H.
System:
The UNT Digital Library
Stratigraphy of the Uranium-Bearing Rocks of the Karnes County Area, South-Central Texas -- A Preliminary Report
Report discussing the stratigraphy of uraniferous rocks discovered near Tordilla Hill in Karnes County, Texas. The report contains sections on the stratigraphy of the area, the structure, uranium minerals, descriptions of individual prospects, and a summary.
Date:
May 1956
Creator:
Eargle, D. Hoye & Snider, John L.
System:
The UNT Digital Library